This forbiddingly arid region covers 56,000 square miles (145,000 square kilometers) of central Australia and boasts some of the largest sand dunes in the world.是什么意思_This forbiddingly arid region covers 56,000 square miles (145,000 square kilometers) of central Australia and boasts some of the largest sand dunes in the world.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句